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Cheap flights from Seattle to Ireland from €232

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 29/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
15:35 - 10:15SEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 - 18:00DUB-SEA
13h 30m1 stop
€357Icelandair
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Mon, 9 Mar - Mon, 23 Mar
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 - 18:00DUB-SEA
13h 30m1 stop
€360Icelandair
Find Deal
Fri, 27 Feb - Mon, 9 Mar
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 - 18:00DUB-SEA
13h 30m1 stop
€361Icelandair
Find Deal
Fri, 27 Feb - Sun, 8 Mar
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 - 17:00DUB-SEA
13h 30m1 stop
€362Icelandair
Find Deal
Tue, 13 Jan - Wed, 4 Feb
Lufthansa Logo
07:00 - 08:10SEA-DUB
17h 10m1 stop
Lufthansa Logo
10:40 - 22:43DUB-SEA
20h 03m1 stop
€373Lufthansa
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Mon, 12 Jan - Fri, 23 Jan
American Airlines Logo
18:50 - 16:45SEA-SNN
13h 55m1 stop
American Airlines Logo
07:50 - 16:55SNN-SEA
17h 05m1 stop
€404American Airlines
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Thu, 5 Feb - Mon, 9 Feb
American Airlines Logo
07:00 - 11:30SEA-SNN
20h 30m2 stops
American Airlines Logo
07:50 - 16:55SNN-SEA
17h 05m1 stop
€408American Airlines
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Thu, 5 Feb - Mon, 9 Feb
United Airlines Logo
12:25 - 10:15SEA-SNN
13h 50m1 stop
United Airlines Logo
12:30 - 09:45SNN-SEA
29h 15m2 stops
€424United Airlines
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Tue, 14 Apr - Sat, 25 Apr
Delta Logo
15:10 - 23:25SEA-ORK
24h 15m1 stop
Delta Logo
06:00 - 11:50ORK-SEA
13h 50m1 stop
€473Delta
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Wed, 21 Jan - Sun, 25 Jan
Delta Logo
07:10 - 12:55SEA-ORK
21h 45m2 stops
Delta Logo
06:00 - 11:50ORK-SEA
13h 50m1 stop
€477Delta
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Wed, 21 Jan - Sun, 25 Jan

Lufthansa flights from Seattle to Ireland

Our best Lufthansa deals on Seattle to Ireland flight tickets
Lufthansa
12 Jan
SEA07:00Seattle/Tacoma Intl
17h 10m
1 stop
DUB08:10Dublin
23 Jan
DUB10:40Dublin
20h 03m
1 stop
SEA22:43Seattle/Tacoma Intl
€373
Find similar
Lufthansa
8 Apr
SEA18:50Seattle/Tacoma Intl
14h 05m
1 stop
DUB16:55Dublin
15 Apr
DUB06:00Dublin
14h 20m
1 stop
SEA12:20Seattle/Tacoma Intl
€391
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Lufthansa
11 Jan
SEA14:10Seattle/Tacoma Intl
34h 00m
1 stop
DUB08:10Dublin
6 Feb
DUB09:00Dublin
42h 16m
2 stops
SEA19:16Seattle/Tacoma Intl
€393
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British Airways flights from Seattle to Ireland

Our best British Airways deals on Seattle to Ireland flight tickets
British Airways
1 Feb
SEA18:50Seattle/Tacoma Intl
29h 05m
1 stop
DUB07:55Dublin
10 Feb
DUB10:55Dublin
14h 00m
1 stop
SEA16:55Seattle/Tacoma Intl
€396
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British Airways
12 May
SEA13:35Seattle/Tacoma Intl
17h 10m
1 stop
DUB14:45Dublin
20 May
DUB20:20Dublin
23h 15m
1 stop
SEA11:35Seattle/Tacoma Intl
€400
Find similar
British Airways
7 Dec
SEA18:50Seattle/Tacoma Intl
12h 15m
1 stop
DUB15:05Dublin
22 Dec
DUB20:40Dublin
28h 15m
1 stop
SEA16:55Seattle/Tacoma Intl
€485
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momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 2 December 2025.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 9/3

15:35-10:15

1 stop11h 40m

Dublin

Mon 23/3

11:30-18:00

1 stop13h 30m

€357

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 27/2

14:35-10:15

1 stop11h 40m

Dublin

Mon 9/3

11:30-18:00

1 stop13h 30m

€360

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 27/2

14:35-10:15

1 stop11h 40m

Dublin

Sun 8/3

11:30-18:00

1 stop13h 30m

€361

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 13/1

14:35-10:15

1 stop11h 40m

Dublin

Wed 4/2

11:30-17:00

1 stop13h 30m

€362

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 12/1

07:00-08:10

1 stop17h 10m

Dublin

Fri 23/1

10:40-22:43

1 stop20h 03m

€373

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 5/2

18:50-16:45

1 stop13h 55m

Shannon

Mon 9/2

07:50-16:55

1 stop17h 05m

€404

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 5/2

07:00-11:30

2 stops20h 30m

Shannon

Mon 9/2

07:50-16:55

1 stop17h 05m

€408

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 14/4

12:25-10:15

1 stop13h 50m

Shannon

Sat 25/4

12:30-09:45

2 stops29h 15m

€424

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 21/1

15:10-23:25

1 stop24h 15m

Cork

Sun 25/1

06:00-11:50

1 stop13h 50m

€473

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 21/1

07:10-12:55

2 stops21h 45m

Cork

Sun 25/1

06:00-11:50

1 stop13h 50m

€477

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from Seattle averaging around €444.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €566 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €500 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Ireland flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

You could potentially save up to 25% on your flight if you consider stops on a Seattle to Ireland flight.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 00m

Direct flights

Every day

Airports in Ireland

1 airport
The fastest flight from Seattle to Ireland takes 9h 00m
Direct flights go from Seattle to Ireland every day.
There is 1 airport near Ireland: Dublin (DUB)
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €40
Flights to Corkfrom €86
Flights to Shannon, Clarefrom €108
Flights to Donegalfrom €76
Flights to Milltown (Kerry)from €39